15
5. TROUBLESHOOTING
PROBLEM CAUSE
SOLUTION
Motor won’t run.
No electric power.
Thermal breaker.
Circuit breaker.
Plug into receptacle.
Permit 5 minutes cool with switch OFF.
Reset circuit breaker.
Pressure Loss.
Maladjusted unloader valve.
Hose inlet filter clogged.
Air in water.
Nozzle worn.
Pump worn.
Readjust.
Remove and clean.
Tighten all water hose fittings.
Replace nozzle.
Rebuild or replace pump.
No water at nozzle.
Water tap turned off.
Hose inlet filter-washer
completely plugged.
Plugged nozzle.
Turn on water.
Remove and clean.
Clear obstruction by blowing air back
through nozzle.
Spray pressure fluctuates.
Air in water inlet line.
Insufficient water flow.
Worn pump.
Maladjusted unloader valve.
Tighten all garden hose fittings.
Increase water source capability.
Rebuild or replace pump.
Readjust.
Will not draw sufficient
detergent of fails to draw at
all.
Detergent hose foot strainer
plugged.
Air in detergent.
Remove from container and clean.
Check for air leaks in detergent hose and
fix.
Water flows into detergent
container as soon as water
hose is turned on.
Injector ball valve remains
open.
Dismantle injector and clean.
Noisy operation, knocking.
Worn or broken bearing.
Inadequate water supply to
pump.
Replace bearing as needed.
Ensure adequate water supply. Clear inlet.
Irregular spray pattern.
Worn or partially clogged
nozzle.
Clean or replace spray nozzle.
